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评估一个集成的纳米零价值铁柱系统,用于从不同的废水矩阵中去除新出现的污染物 - - 识别转化产品

Evridiki Barka¹, Maria Christina Nika², Andriani Galani¹

¹Sanitary Engineering Laboratory, Department of Water Resources and Environmental Engineering, School of Civil Engineering, National Technical University of Athens, 15780, Athens, Greece.

|February 10, 2024

概括

这项研究评估了一种使用绿茶合成的零价值铁纳米颗粒 (nZVI) 和硫酸盐来从废水中去除药品和内分泌干扰物的新系统. 该系统在三级处理废水中显示出高的清除效率,证明了其在微污染物整治方面的潜力.

科学领域:

环境化学环境化学
水处理技术水处理技术
纳米技术纳米技术

背景情况:

微污染物,如药品和内分泌干扰物,由于其持久性和生物积累,构成风险.
传统的废水处理通常无法有效地去除这些新出现的污染物.
开发先进的氧化过程对于改善水质至关重要.

研究的目的:

评估使用绿茶合成的零价值铁纳米粒子 (nZVI) 和酸硫酸盐去除微污染物的新型柱系统.
为了评估系统在不同的真实废水废水矩阵中的性能.
为了确定目标污染物的转化产品.

主要方法:

从绿茶提取物中合成nZVI,并将其纳入阴离子树脂中.
在连续流量柱中应用R-nFe/PS系统.
对药物 (易布洛芬,纳普罗森,迪克洛芬,) 和内分泌干扰物 (双甲醇) 清除的分析.
从无氧膜生物反应器 (AnMBR),上游无氧污泥毯 (UASB),三级活性污泥和混合系统的废水的调查.

主要成果:

与其他矩阵相比,R-nFe/PS系统在三级废水中显示出更高的清除效率 (>70%).
清除效率因废水而异:三级 > AnMBR ≈混合 > UASB (最大~50%).
确定了二二烯和双A的转化产品.

结论:

来自绿茶的nZVI和硫酸盐系统有效地从废水中去除特定的微污染物.
废水矩阵特征显著影响系统性能.
本研究为各种真实废水矩阵提供了首次对nZVI/硫酸盐的连续流量评估.

关键词:

内分泌破坏性化学物质破坏内分泌的化学物质.纳米零价值铁是什么意思非类固醇抗炎药物非类固醇抗炎药物透硫酸盐的使用情况转化产品转化产品是指转化产品.

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